https://r2.erweima.ai/mathbot/image/172669779252211gaenhu.jpg

Let's analyze the motion graph from your image to answer the questions. The graph shows displacement (y-axis) over time (x-axis), so we can extract information about the car's movement at different times.

### 1. **Total Distance Travelled to 50 s**:
- From 0 to 20 s: The car travels from 0 m to +600 m.
- From 20 to 40 s: The car stays at +600 m, so no additional distance is covered.
- From 40 to 50 s: The car moves back from +600 m to 0 m.
- **Total distance** = 600 m (forward) + 600 m (backward) = **1200 meters**.

### 2. **Displacement of the Car at 50 s**:
- At 50 s, the car is back at the 0 m mark (same as the starting point).
- **Displacement** = **0 m**.

### 3. **When, if at all, Was the Car Stopped?**:
- Between 20 s and 40 s, the displacement is constant at +600 m, meaning the car is stopped during this interval.
- **The car was stopped** between **20 s and 40 s**.

### 4. **When Did the Car Return to the Starting Point?**:
- The car starts at 0 m, and after moving forward to +600 m, it returns to 0 m at **50 seconds**.

### 5. **Car's Displacement at 85 s**:
- From 50 s to 70 s, the car continues past the 0 m mark to -600 m.
- From 70 s to 85 s, the car moves from -600 m to +200 m.
- **Displacement at 85 s** = **+200 m**.

### Any questions on the details? Feel free to ask!

Here are five related questions to extend this analysis:
1. What was the car's average velocity between 0 and 20 s?
2. What was the velocity of the car from 40 to 50 s?
3. How long did it take for the car to travel from -600 m to +200 m?
4. At what time did the car reach its maximum displacement?
5. How far was the car at 60 seconds?

### Tip:
Displacement refers to the shortest path from the initial to final position, while distance is the total path length covered.

What was the total distance travelled to 50 s? What was the displacement of the car at 50 s? When, if at all, was the car stopped? When did the car return to the starting point? What was the car’s displacement at 85 s?

Learn how to analyze a motion graph by calculating the total distance, displacement, and velocity of a car moving along a path. This problem covers essential kinematics concepts, including displacement, total distance, and when the car was at rest. Suitable for students in Grades 9-12.

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